/*
 * Copyright (c) 2013, 2022, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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 */
package org.graalvm.visualizer.shell.impl;

import org.graalvm.visualizer.filter.FilterProvider;
import org.graalvm.visualizer.filter.spi.GraphFilterLocator;
import org.openide.util.Lookup;
import org.openide.util.lookup.ServiceProvider;
import org.openide.windows.Mode;
import org.openide.windows.ModeSelector;
import org.openide.windows.TopComponent;
import org.openide.windows.WindowManager;

/**
 * Directs script editors into "scripts" mode instead of to the main area
 *
 * @author sdedic
 */
@ServiceProvider(service = ModeSelector.class)
public class ShellModeSelector implements ModeSelector {
    private final GraphFilterLocator filterLocator;

    public ShellModeSelector() {
        this.filterLocator = Lookup.getDefault().lookup(GraphFilterLocator.class);
    }

    @Override
    public Mode selectModeForOpen(TopComponent tc, Mode preselectedMode) {
        if (filterLocator == null || !"mainArea".equals(preselectedMode.getName())) { // NOI18N
            return null;
        }
        FilterProvider src = filterLocator.findChain(tc.getLookup());
        if (src != null && src.getFilter() != null) {
            return WindowManager.getDefault().findMode("scripts"); // NOI18N
        }
        return null;
    }

}
